[[Fasciculus:M Faraday Lab H Moore.jpg|thumb|[[Michael Faraday]] in suo laboratorio]]
Quamquam ad leges Coulomb et Biot-Savart ascribendas campos magneticos electricosque utimur,
[[campus physicus|cogitationotio camporum]] per se primitus concepta est a [[Michael Faraday|Michaelo Faraday]], Professore Chemiae Fulleriano Instituti Regali Britanniarum, qui annos [[1820]]-[[1873]] magnopere physicam electromagneticam chemiamque aggreditur.<ref>Una historia magnifica de Michaelo Faraday a L. Pearce Williams est: "Michael Faraday, a biography", Da Capo Press, 1987, ISBN 0-306-80299-6.</ref> Antea vires electricas magneticasque putabant esse [[actio trans distantiam|actiones trans distantias]] vi gravitatis Newtoniana similes, sed Faraday theoriam protulit omnes vires esse ob campos qui spatium complent. Ad illos campos describendos, Faraday cogitationemnotionem ''lineae camporum'' comminiscit et postea demonstravit lineas magneticas, quae legi Amperi parent et fontes carent, solum per spatium circulare.<ref>Re vere Faraday ipse dicebat ''lineas viris'' quando exempli gratia de campo magnetico cogitabat. In suo opere "De natura lineae virium" ([[Anglice]]: [http://books.google.com/books?id=Q7sKAAAAIAAJ&pg=PA407&lpg=PA407&dq=on+the+physical+character+of+the+lines+of+force&source=web&ots=bk7DipWnwe&sig=mnAX-svCMRD3UKrYnx_XsWdhxpg#PPA414,M1|"On the physical character of the lines of force"]) nos certioremcertiores fecitfacit anno [[1852]]: "I cannot conceive curved lines of force without the conditions of ''a physical existence'' in that intermediate space" [emphasis additur].</ref> ApplicandoApplicantes igitur theorema Gauss ad campos magneticos fontes carentes obtinemus legem Gauss magneticam<ref>Vide [8] supra.</ref>:
